Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / ndp / fx / src / Net / System / Net / Sockets / _AcceptOverlappedAsyncResult.cs / 1 / _AcceptOverlappedAsyncResult.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Net.Sockets { using System; using System.Net; using System.Runtime.InteropServices; using System.Threading; using Microsoft.Win32; // // AcceptOverlappedAsyncResult - used to take care of storage for async Socket BeginAccept call. // internal class AcceptOverlappedAsyncResult : BaseOverlappedAsyncResult { // // internal class members // private int m_LocalBytesTransferred; private Socket m_ListenSocket; private Socket m_AcceptSocket; private int m_AddressBufferLength; private byte[] m_Buffer; // Constructor. We take in the socket that's creating us, the caller's // state object, and the buffer on which the I/O will be performed. // We save the socket and state, pin the callers's buffer, and allocate // an event for the WaitHandle. // internal AcceptOverlappedAsyncResult(Socket listenSocket, Object asyncState, AsyncCallback asyncCallback) : base(listenSocket, asyncState, asyncCallback) { m_ListenSocket = listenSocket; } #if !FEATURE_PAL // // This method will be called by us when the IO completes synchronously and // by the ThreadPool when the IO completes asynchronously. (only called on WinNT) // internal override object PostCompletion(int numBytes) { SocketError errorCode = (SocketError)ErrorCode; SocketAddress remoteSocketAddress = null; if (errorCode==SocketError.Success) { m_LocalBytesTransferred = numBytes; if(Logging.On)LogBuffer((long)numBytes); //get the endpoint remoteSocketAddress = m_ListenSocket.m_RightEndPoint.Serialize(); IntPtr localAddr; int localAddrLength; IntPtr remoteAddr; UnsafeNclNativeMethods.OSSOCK.GetAcceptExSockaddrs( Marshal.UnsafeAddrOfPinnedArrayElement(m_Buffer, 0), m_Buffer.Length - (m_AddressBufferLength * 2), m_AddressBufferLength, m_AddressBufferLength, out localAddr, out localAddrLength, out remoteAddr, out remoteSocketAddress.m_Size ); Marshal.Copy(remoteAddr, remoteSocketAddress.m_Buffer, 0, remoteSocketAddress.m_Size); //set the socket context try { IntPtr handle = m_ListenSocket.SafeHandle.DangerousGetHandle(); errorCode = UnsafeNclNativeMethods.OSSOCK.setsockopt( m_AcceptSocket.SafeHandle, SocketOptionLevel.Socket, SocketOptionName.UpdateAcceptContext, ref handle, Marshal.SizeOf(handle)); if (errorCode == SocketError.SocketError) errorCode = (SocketError) Marshal.GetLastWin32Error(); GlobalLog.Print("AcceptOverlappedAsyncResult#" + ValidationHelper.HashString(this) + "::PostCallback() setsockopt handle:" + handle.ToString() + " AcceptSocket:" + ValidationHelper.HashString(m_AcceptSocket) + " itsHandle:" + m_AcceptSocket.SafeHandle.DangerousGetHandle().ToString() + " returns:" + errorCode.ToString()); } catch (ObjectDisposedException) { errorCode = SocketError.OperationAborted; } ErrorCode = (int)errorCode; } if (errorCode==SocketError.Success) { return m_ListenSocket.UpdateAcceptSocket(m_AcceptSocket, m_ListenSocket.m_RightEndPoint.Create(remoteSocketAddress), false); } else return null; } #endif // !FEATURE_PAL // // SetUnmanagedStructures - // Fills in Overlapped Structures used in an Async Overlapped Winsock call // these calls are outside the runtime and are unmanaged code, so we need // to prepare specific structures and ints that lie in unmanaged memory // since the Overlapped calls can be Async // internal void SetUnmanagedStructures(byte[] buffer, int addressBufferLength) { // has to be called first to pin memory base.SetUnmanagedStructures(buffer); // // Fill in Buffer Array structure that will be used for our send/recv Buffer // m_AddressBufferLength = addressBufferLength; m_Buffer = buffer; } /* // Consider removing. internal void SetUnmanagedStructures(byte[] buffer, int addressBufferLength, ref OverlappedCache overlappedCache) { SetupCache(ref overlappedCache); SetUnmanagedStructures(buffer, addressBufferLength); } */ void LogBuffer(long size) { GlobalLog.Assert(Logging.On, "AcceptOverlappedAsyncResult#{0}::LogBuffer()|Logging is off!", ValidationHelper.HashString(this)); IntPtr pinnedBuffer = Marshal.UnsafeAddrOfPinnedArrayElement(m_Buffer, 0); if (pinnedBuffer != IntPtr.Zero) { if (size > -1) { Logging.Dump(Logging.Sockets, m_ListenSocket, "PostCompletion", pinnedBuffer, (int)Math.Min(size, (long)m_Buffer.Length)); } else { Logging.Dump(Logging.Sockets, m_ListenSocket, "PostCompletion", pinnedBuffer, (int)m_Buffer.Length); } } } internal byte[] Buffer { get { return m_Buffer; } } internal int BytesTransferred { get { return m_LocalBytesTransferred; } } internal Socket AcceptSocket { set { m_AcceptSocket = value; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Net.Sockets { using System; using System.Net; using System.Runtime.InteropServices; using System.Threading; using Microsoft.Win32; // // AcceptOverlappedAsyncResult - used to take care of storage for async Socket BeginAccept call. // internal class AcceptOverlappedAsyncResult : BaseOverlappedAsyncResult { // // internal class members // private int m_LocalBytesTransferred; private Socket m_ListenSocket; private Socket m_AcceptSocket; private int m_AddressBufferLength; private byte[] m_Buffer; // Constructor. We take in the socket that's creating us, the caller's // state object, and the buffer on which the I/O will be performed. // We save the socket and state, pin the callers's buffer, and allocate // an event for the WaitHandle. // internal AcceptOverlappedAsyncResult(Socket listenSocket, Object asyncState, AsyncCallback asyncCallback) : base(listenSocket, asyncState, asyncCallback) { m_ListenSocket = listenSocket; } #if !FEATURE_PAL // // This method will be called by us when the IO completes synchronously and // by the ThreadPool when the IO completes asynchronously. (only called on WinNT) // internal override object PostCompletion(int numBytes) { SocketError errorCode = (SocketError)ErrorCode; SocketAddress remoteSocketAddress = null; if (errorCode==SocketError.Success) { m_LocalBytesTransferred = numBytes; if(Logging.On)LogBuffer((long)numBytes); //get the endpoint remoteSocketAddress = m_ListenSocket.m_RightEndPoint.Serialize(); IntPtr localAddr; int localAddrLength; IntPtr remoteAddr; UnsafeNclNativeMethods.OSSOCK.GetAcceptExSockaddrs( Marshal.UnsafeAddrOfPinnedArrayElement(m_Buffer, 0), m_Buffer.Length - (m_AddressBufferLength * 2), m_AddressBufferLength, m_AddressBufferLength, out localAddr, out localAddrLength, out remoteAddr, out remoteSocketAddress.m_Size ); Marshal.Copy(remoteAddr, remoteSocketAddress.m_Buffer, 0, remoteSocketAddress.m_Size); //set the socket context try { IntPtr handle = m_ListenSocket.SafeHandle.DangerousGetHandle(); errorCode = UnsafeNclNativeMethods.OSSOCK.setsockopt( m_AcceptSocket.SafeHandle, SocketOptionLevel.Socket, SocketOptionName.UpdateAcceptContext, ref handle, Marshal.SizeOf(handle)); if (errorCode == SocketError.SocketError) errorCode = (SocketError) Marshal.GetLastWin32Error(); GlobalLog.Print("AcceptOverlappedAsyncResult#" + ValidationHelper.HashString(this) + "::PostCallback() setsockopt handle:" + handle.ToString() + " AcceptSocket:" + ValidationHelper.HashString(m_AcceptSocket) + " itsHandle:" + m_AcceptSocket.SafeHandle.DangerousGetHandle().ToString() + " returns:" + errorCode.ToString()); } catch (ObjectDisposedException) { errorCode = SocketError.OperationAborted; } ErrorCode = (int)errorCode; } if (errorCode==SocketError.Success) { return m_ListenSocket.UpdateAcceptSocket(m_AcceptSocket, m_ListenSocket.m_RightEndPoint.Create(remoteSocketAddress), false); } else return null; } #endif // !FEATURE_PAL // // SetUnmanagedStructures - // Fills in Overlapped Structures used in an Async Overlapped Winsock call // these calls are outside the runtime and are unmanaged code, so we need // to prepare specific structures and ints that lie in unmanaged memory // since the Overlapped calls can be Async // internal void SetUnmanagedStructures(byte[] buffer, int addressBufferLength) { // has to be called first to pin memory base.SetUnmanagedStructures(buffer); // // Fill in Buffer Array structure that will be used for our send/recv Buffer // m_AddressBufferLength = addressBufferLength; m_Buffer = buffer; } /* // Consider removing. internal void SetUnmanagedStructures(byte[] buffer, int addressBufferLength, ref OverlappedCache overlappedCache) { SetupCache(ref overlappedCache); SetUnmanagedStructures(buffer, addressBufferLength); } */ void LogBuffer(long size) { GlobalLog.Assert(Logging.On, "AcceptOverlappedAsyncResult#{0}::LogBuffer()|Logging is off!", ValidationHelper.HashString(this)); IntPtr pinnedBuffer = Marshal.UnsafeAddrOfPinnedArrayElement(m_Buffer, 0); if (pinnedBuffer != IntPtr.Zero) { if (size > -1) { Logging.Dump(Logging.Sockets, m_ListenSocket, "PostCompletion", pinnedBuffer, (int)Math.Min(size, (long)m_Buffer.Length)); } else { Logging.Dump(Logging.Sockets, m_ListenSocket, "PostCompletion", pinnedBuffer, (int)m_Buffer.Length); } } } internal byte[] Buffer { get { return m_Buffer; } } internal int BytesTransferred { get { return m_LocalBytesTransferred; } } internal Socket AcceptSocket { set { m_AcceptSocket = value; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- Int64Animation.cs
- Rijndael.cs
- Geometry.cs
- Comparer.cs
- CacheRequest.cs
- Comparer.cs
- StreamUpdate.cs
- Win32PrintDialog.cs
- odbcmetadatacolumnnames.cs
- TraceData.cs
- FixedSOMTextRun.cs
- CodeDesigner.cs
- X509CertificateStore.cs
- DependencyPropertyAttribute.cs
- BigInt.cs
- Brushes.cs
- XmlSortKey.cs
- SingleObjectCollection.cs
- XmlSchemaProviderAttribute.cs
- GenerateHelper.cs
- EdmMember.cs
- WindowsTokenRoleProvider.cs
- XmlSchemaObjectTable.cs
- controlskin.cs
- HandlerBase.cs
- URLString.cs
- ApplicationProxyInternal.cs
- ObjectDataSource.cs
- WebResourceUtil.cs
- EventLogTraceListener.cs
- AnnotationElement.cs
- SHA1Managed.cs
- AssemblyInfo.cs
- WsdlInspector.cs
- TheQuery.cs
- InstanceData.cs
- DesignerGeometryHelper.cs
- GlyphCollection.cs
- HMAC.cs
- SpeakProgressEventArgs.cs
- Utils.cs
- AssemblyCollection.cs
- NullReferenceException.cs
- ServiceHostingEnvironmentSection.cs
- Section.cs
- HostedHttpRequestAsyncResult.cs
- UrlPath.cs
- ClickablePoint.cs
- SqlDataReaderSmi.cs
- DialogResultConverter.cs
- CompilationRelaxations.cs
- CultureMapper.cs
- BaseCodeDomTreeGenerator.cs
- DecoderExceptionFallback.cs
- WebOperationContext.cs
- CustomLineCap.cs
- TemplateContent.cs
- KnownBoxes.cs
- MonthCalendarDesigner.cs
- CompositeFontInfo.cs
- odbcmetadatafactory.cs
- WrapPanel.cs
- StylusDevice.cs
- DeflateStreamAsyncResult.cs
- Graph.cs
- RuleSetDialog.Designer.cs
- NamespaceTable.cs
- EntryIndex.cs
- SystemWebExtensionsSectionGroup.cs
- InputLanguage.cs
- XmlRawWriter.cs
- ObjectDataSourceEventArgs.cs
- HandlerBase.cs
- IList.cs
- ExtensionFile.cs
- ThreadStaticAttribute.cs
- StrongNameMembershipCondition.cs
- _ConnectionGroup.cs
- TokenizerHelper.cs
- DictionaryManager.cs
- XmlSchemaNotation.cs
- HtmlProps.cs
- FragmentNavigationEventArgs.cs
- CompilerLocalReference.cs
- ScrollBarRenderer.cs
- ObjectTag.cs
- Sql8ExpressionRewriter.cs
- NamedPermissionSet.cs
- XmlSchemaDocumentation.cs
- ProfileParameter.cs
- UdpAnnouncementEndpoint.cs
- ExceptionRoutedEventArgs.cs
- UnauthorizedWebPart.cs
- NameObjectCollectionBase.cs
- Image.cs
- AnimationClock.cs
- Util.cs
- DbModificationClause.cs
- CompositeDataBoundControl.cs
- WarningException.cs